Lubricating system for internal-combustion and other engines.



W. J. WRIGHT. LUBRIGATING SYSTEM FOR INTERNAL COMBUSTION AND OTHERENGINES.

APPLICATION FILED JUN; 7, 1910. 1,020,007- Patented Mar. 12, 1912.

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vairrzg im BY I W. J. WRIGHT.- LUBRIGATIN'G SYSTEM FOR INTERNALGOMBUSTION AND OTHER ENGINES. APPLICATION IILED JUNE 7, 1910.

1,020,007, I Patented- Mar; 12,1912.

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fi M01 UNITED STATES PATENT ()FFTCE.

WILLIAM J". WRIGHT, 0F FRANKLIN, PENNSY'LVANIA,

LUBRICA'I'ING SYSTEM FOR INTERNAL-COMBUSTION AND OTHER ENGINES.

To all whom it may concern:

Be it known. that I, WILLIAM J. WRIGHT, residing at Franklin, in thecounty of Venango and State of Pennsylvania, have invented certain newand useful Improvements in Lubricating Systems for Internal- Combustionand other Engines, of which the following is a specification.

My invention is an improved apparatus or system of lubricating engineswhich are exposed to high temperatures, whereby etiicient lubrication ofall the moving parts is had and in such manner as to consume the leastpossible power from the engine, the oiling system being operated by theengine itself.

In its general nature the invention resides in providing a closed crankcasein connection with the engine cylinder or cylinders and inconnection also with an oil reservoir whereby the working strokes of thepiston or pistons will effect a compres-' sion of the medium within thecrank case and oil reservoir to cause a spraying of oil to take place inthe crank case and engine cylinder on the return stroke of the pistons;

the invention consisting further in providing a system of piping fromthe oil reservoir to the various parts to be oiled and back again to theoil reservoir to cause a constant circulation of the oil through themain duct or distributing pipe from the reservoir back to the reservoir,a suitable pump being provided for eflecting the circulation, the pumpbeing operated from a moving part of the machine.

The invention also resides in those novel combinations, construction andarrangements of parts which will be hereinafter fully described and thenbe specifically pointed out in the appended claims, reference being hadto the accompanying drawings, in which Figure 1, is an end elevation ofan engine embodying the invention, parts being broken away, and otherparts being shown in section for convenience of illustration. Fig. 2, isa central vertical longitudinal section on the line 2 2 of Fig. 1. Fig.3, is an enlarged detail section of the oil pump.

In the drawings in which like numerals, less the references, indicatelike parts in all of the figures, 1 designates the main supporting frameof the engine which includes the crank case 2 and the oil reservoir 3,the oil reservoir being. separated from the crank Specification ofLetters Patent.

Application filed June 7, 1910.

PatentedMar. 12, 1912.

Serial No. 565,518.

case by a partition 4;, into which the overflow pipes 5 are secured.

The frame 1 is provided with side bearings 6-6 for the crank shaft 7 andis further provided with an intermediate bearing 8 supported on thepartition 4, which is underbraced by a post 9.

Within the crank case 2, the crank shaft 7 has cranks 10 and 11 one ofwhich, 10, is for one piston 13, and the other one, 11, is for the otherpiston 12. The engine cylinders are designated by 14 and 15,respectively, and have their open ends bolted over the holes 16 and 17in the case 2.

The engine is provided with valves 32 and 25 which are opened and closedby a rocker arm 15 operated through a rod 55 from the crank shaft 7suitable cam devices 58 and 59 as best indicated in Fig. 1 of thedrawings.

46 are what I term hushers interposed between the rocker arms 45 and thevalves 32 and 25, respectively. The bearings 6 have lubricating bores179 opening through the top and 180 draining toward the bottom throughwhich lubricant may pass to and around the shaft 7 and excess lubricantreturn to the case 2.

76 designates an auxiliary crank shaft bearing having a lubricant bore.

The oiling system by means of which the moving parts of my invention arethoroughly lubricated is a combined force feed and spray system. An oilpump 166 is secured to the frame 1 and has its inlet piped .through apipe 167 with the reservoir 3, a

back check valve 168 being provided to prevent the oil flowingbackwardly from the pump 166 to the reservoir 3.

The piston 169 of the pump 166 is connected by a rod 170 to the slide196 to be 0perated by the cam 59.

The outlet of the pump 166 delivers through a back check valve 171 fromwhich a main feed or distribution pipe 172 which has-short laterals 173to convey the oil to the several parts to be lubricated, andeach of thelaterals 173 has a stop cock 174 by means of which the flow of oil tothe bearings may be regulated the end of which pipe 172 delivers at 175back into the oil reservoir 3. The pi e 172 also has a lateral 176 thatis provide with a stop cock 177 and is connected to deliver oil into thecrank case 2 but keep the oil in such case at a constant level and causeit to flow into the pipe 5.

A gage glass 178 is provided for the oil reservoir so that the level ofthe oiltherein may be observed.

The bearings 66 are oiled through bores 17 9 into which the oilgravitates, the surplus oil returning to the casing by way of otherbores 180.

The cranks 10-11, bearings 6 and 8, pistons 12 and 13, and cylinders 14and 15 are oiled by the oil spray or vapor generated -in the crank caseby the movements of the pistons 12 and 13. On their down strokes thepistons 12 and 13 compress the air (or other gaseous or vaporous fluids)in the crank case 2 and as the chambers 2 and 3 are in communicationwith one another, by means of the pipes 5, through which the overflowoil is passing, the gase ous matters in chamber 3 will becorrespondingly compressed; thup as the pistons hegin to ascend anegatiiffe pressure in case 2 is formed below that in reservoir 3 whichcauses the compressed air in reservoir 3 to blow through pipes ,5 .intothe crank case 2 in the form of a vapor to fill such crank case withsuch vapor and thereby thoroughly lubricate the pistons, and cylinders.

In this application, I make noclaim-to the engine construction, per 86,as that forms the subject matter of a co-pending application. a

From the foregoing, it will be observed that theoil is continuallycirculating from the reservoir 3 through the main pipe 172 back into thereservoir 3 at 175 while oil passes through the lateral ducts 173 to thevarious external bearing parts to be lubricated.

The spray within the crank case 2 causes oil to collect in the inletbores 179 where it passes to the bearings 6 and lubricates the crankshaft 7, the excess lubricant flowing back out of the ports 180 andeventually gravitating into the reservoir 3'.

It should be understood that oil is constantly trickling through the.pipes 5 from the crank case 2 as it overflows into said pipes 5 so thatas the pistons 12 and 13 move on their upstroke, the difference inpressure of the vapors within the cases 2 and 3 will cause the oil to besprayed into the case 2, into the pipes 5 from the case 3 andeffectively lubricate the pistons 12 and 13 and the cylinder walls aswell as the shaft crank bearings, etc.

What I claim is 1. In a lubricating system for engines, the combinationwith the cylinders, pistons, crank shaft and connecting rods between thecrank shaft and the pistons; a closed crank case, an oil reservoir,means actuated by the movement of said pistons for filling said crankcase with an oil spray for purposes o lubrication, a main duct forconveying 011 from said reservoir and back to said reservoir, lateralducts leading off from said main duct to the parts to be lubricated, anoil pump for forcing oil through said ducts and means for operating saidoil pump.

2. In a lubricating system for engines, the combination with thecylinder, piston, crank shaft and connecting rod between the crank shaftand the piston; an oil reservoir, overflow pipes connecting said crankcase with said oil reservoir, said engine having a set of externalmoving parts in contact with one another requiring lubrication, a maindistributing duct mounted on the outside of said engine and having itsends connect ed with said oil reservoir, an oil pump connected with saidduct for effecting a continuous circulation of oil through said ductfrom said reservoir back to said reservoir, and a set of valved lateralducts leading from said main duct to the external engine parts to belubricated.

3. In an oiling system for engines, said engines including a workingcylinder, a piston, a closed crank case in communication with saidcylinder, a crank shaft mounted in hearings in said crank case andhaving cranks operating in said crank case, a connecting rod betweensaid crank and said piston, said crank shaft bearings having lubricatingbores opening into said crank case; an oil reservoir, overflow pipesconnecting said crank case with said oil reservoir, said engine having aset of external moving parts in contact with one another requiringlubrication, a main distributing duct mounted on the outside of saidengine and having its ends connected with said oil reservoir. an oilpump connected with said duct for effecting a continual circulation ofoil through said duct from. said reservoir back to said reservoir, a setof valve laterals leading from said duct to the external parts to belubricated, said overflow pipes between said crank case and saidreservoir having a combined cross-sectional area less than that of saidcylinder whereby the movement of said piston will efl'ect unevenpressure in said crank case and in said oil reservoir to thereby causethe overflowing oil in said pipes to be sucked and sprayed into saidcrank case on one stroke of said piston, to lubricate the same.

4. In a lubricating system for internal combustion engines and the like,a case, an Oll reservoir, means actuated by the movement of the enginepistons .for fillin the case with an oil spray for purposes oflllbI'lcation, a main duct for conveying oil from said reservoir anddelivering oil back into said reservoir, lateral ducts leading oil fromsaid main duct to the engine parts to be lubricated, an oil pump forforcing oil through said ducts, and means for connectlngsaid pump with amoving part of the engine for operating said pump.

. from said main duct to the external engine parts to be lubricated.

6. In a lubricating system for engines, the

.combination with the cylinders, the pistons,

the crank case in communication with the cylinders and pistons, and thecrank shaft,

and. connections between the same and the pistons; of an oil reservoir,overflow pipes connecting said crank case with said reservoir so thatoil will flow through said pipes into the reservoir during one stroke ofthe pistons and be sucked out of said pipes into the crank case in theform of spray during the opposite stroke of said pistons substantiallyas shown and described.

7. In an engine lubricating system, a

. closed case in free communication with the engine cylinders andadapted to retain oil,

-an oil reservoir beneath said case, overflow pipes connecting said casewithsaid reservoir, a main distributing duct the outside of the engineand having its ends connected with said reservoir, an oil pump connectedwith said duct for eifecting a continuous circulation of oil throughsaid duct from said reservoir back to said reservoir, a V set of valvedlateral ducts leading from sa d main duct to the engine parts to belubricated and including a duct for delivering oil from said main ductinto said case, substantially as shown and described.

8. In an engine lubricating system, a closed case in free communicationwith the engine cylinders and adapted to retain oil, an oil reservoirbeneath said case, overflow pipes connecting said case with saidreservoir, a main distributing duct mounted on the outside of the engineand having its ends connected with said reservoir, an oil pump connectedwith said duct for effecting a continuous circulation of oil throughsaid duct from said reservoir back to said reservoir, a set of valvedlateral ducts leading from said main duct to the engine parts to belubricated and including a duct for delivering oil from said main ductinto said case, said overflow pipes between said case and said mountedon reservoir having a combined cross sectional area less than that ofthe engine cylinders in communication with the case, whereby themovement of the engine pistons will effect uneven pressure in said caseand in said reservoir to. thereby cause the overflowing oil in saidpipes to be sucked and sprayed into said case on one stroke of saidpistons to lubricate the same. a

- 9. In a lubricating system, a closed crank case, a crank shaft mountedin bearings in said crank case, a cylinder mounted on and in freecommunication with said crank case, a piston operating in said cylinder,a connecting rod between said piston and. crank shaft, an oil reservoirbeneath said crank case, overflow pipes connecting said crank case withsaid reservoir to maintain a predetermined level of oil in saidcrank-case, a main distributing duct connectedv to said reservoir and avalved lateral duct connecting said distributing duct with said crankcase, and a pump for forcing oil through. said ducts.

10. In an engine lubricating system, the I combination with the enginecylinders and pistons, of a case in communication with said cylinders,an oil reservoir beneath said case, overflow pipes connecting .said casewith said reservoir, so that oil in said case will overflow through saidpipes into said reservoir during one stroke of said pistons and besucked out of said pipes into the case in the form of spray duringanother stroke of said pistons substantially as shown and described.

11..In an engine lubricating system, the combination with the enginecylinders and pistons, of a case in communication with said cylinders,an oil reservoir beneath said case, overflow pipes connecting said casewith said reservoir, so that oilin said case will overflow through saidpipes into said reservoir during one stroke of said pistons and besucked out of said pipes into the case in the form of spray duringanother stroke of said pistons, a main oil duct having its ends incommunication with said reservoir and a valved lateral duct leading offfrom said main duct and delivering into said case to maintain a constantlevel of oil in said case, and means for pumping oil through said ducts.

WILLIAM J. WRIGHT.. Witnesses:

ALBERT E. DIETERICH, Gno. B, Prr'rs.

